Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk


Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please


Reply
 
Thread Tools Display Modes
Old 11-09-2012, 05:07 AM   #1
cyclo
Registered Users
 
Posts: 2,867
 

Join Date: Jul 2012
Location: Toronto, Canada
Default Compass Atom vs T-Rex 500 Pro DFC

I have decided my next step up would be to a 500 class heli and have narrowed my choice to these two. I will be using an AR7200BX FBL controller as I am already familiar on how to set these up. The plan is to do sports flying, mild 3D (loops, rolls, inverted) with this machine while getting more aggressive with my 450's. Any comments and suggestions are welcome.
__________________
2 x Compass 7HVU Scorpion HK-4525-520, YGE 160HV, MKS HBL950/980, AR7200BX
Compass Atom 5.5 YGE 90HV, MKS 9660A+/BLS980, AR7200BX
Compass Atom 500 Castle ICE75, Savox 1250MG/1290MG, AR7200BX
Gaui X3 Scorpion HK-2520-1580, HW50A V3, KST 215/515, AR7200BX
Hoverthings FLIP-FPV
cyclo is online now        Reply With Quote
Old 11-09-2012, 05:28 AM   #2
wocka_wocka
Registered Users
 
Posts: 495
 

Join Date: May 2012
Location: South Coast, UK
Default

I have a Compass Atom, FBL w/beastx & Futaba, and have had a Trex 500 FB (TT tail). No comparison. Atom: beefy, built like a tank. I had no real issues with the way the Trex flew, but it was just flimsy in comparison.

I've crashed my Trex 450 into a wall and replaced main blades and flybar.

I dropped the Trex 500 onto the floor in the most minor way you can imagine, eeerrrmm, main blades, flybar, popped all three cyclic servos and bent the boom...

And another thing, I don't like the Trex gyros. The 450 has a CSM smart lock and its lovely to fly. The 500 had a 780 gyro that I never really got set up properly.

Don't get me wrong, I'm not anti-Trex at all. I have a Beam 450 and an old Trex 450 and while the Beam is much better mechanical quality I enjoy flying the Trex far more.

Go for the Compass Atom and see what you think.
wocka_wocka is offline        Reply With Quote
Old 11-09-2012, 06:19 AM   #3
heliphlier
Registered Users
 
Posts: 635
 

Join Date: May 2010
Location: Kahului, Maui
Default

I think I have narrowed it down to the Compass myself. I like Align but I want to try another company. I played around with the idea of getting a either a Logo 500, Gaui X5 or the Compass Atom 500. It sure isn't an easy choice.
__________________
#1- Trex 450 Pro 3Gx DFC (6s) 450mx(1700kv) CC Ice 50 Mavrick G5 blades MKS DS-92A+ cyclic Futaba s9650 rudder KBDD tail blades DX6i__#2- Trex 450 Pro ZYX (3s) Scorpion-8 CC Ice 50 Radix blades DS76H cyclic Futaba s9650 rudder KBDD tail blades DX6i
heliphlier is offline        Reply With Quote
Old 11-09-2012, 07:21 AM   #4
electronjunkie
Registered Users
 
Posts: 438
 
My HF Map location
Join Date: Oct 2009
Location: Raleigh, NC
Default

Compass Atom 500 can be stretched to use 520mm blades I believe. It is sure built to handle them.
__________________
I am a card carrying Compass Fanboi
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Compass 7HV / Compass TracX FBL Unit
Compass 6HVU / Ikon
Compass Atom 5.5 / Compass TracX FBL Unit
electronjunkie is online now        Reply With Quote
Old 11-09-2012, 08:40 AM   #5
Lighty
Registered Users
 

Join Date: Feb 2011
Location: Australia
Default

The compass is a also hell of a lot lighter.
__________________
Known as Mick Dee
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Lighty is offline        Reply With Quote
Old 11-09-2012, 08:58 AM   #6
Maypole
Registered Users
 
Posts: 6,318
 

Join Date: Feb 2011
Location: Austin, TX
Default

Quote:
Originally Posted by wocka_wocka View Post
I have a Compass Atom, FBL w/beastx & Futaba, and have had a Trex 500 FB (TT tail). No comparison. Atom: beefy, built like a tank. I had no real issues with the way the Trex flew, but it was just flimsy in comparison.

I've crashed my Trex 450 into a wall and replaced main blades and flybar.

I dropped the Trex 500 onto the floor in the most minor way you can imagine, eeerrrmm, main blades, flybar, popped all three cyclic servos and bent the boom...

And another thing, I don't like the Trex gyros. The 450 has a CSM smart lock and its lovely to fly. The 500 had a 780 gyro that I never really got set up properly.

Don't get me wrong, I'm not anti-Trex at all. I have a Beam 450 and an old Trex 450 and while the Beam is much better mechanical quality I enjoy flying the Trex far more.

Go for the Compass Atom and see what you think.
To the OP:
While the above post may very well be a fair and accurate comparison between the Compass and a Trex 500 Esp, (in any of it's nine million versions), it really doesn't pertain to your original post.

The 500 Esp and the Efl Pro DFC are two completely different machines. Very few of the parts will even interchange. I've built both, tweaked both, flown, crashed and re-built both, and can tell you that the new machine is far superior. So, when looking at comparisons, make sure they are between the birds you are interested in.

The only input I am qualified to give you is on the Pro DFC. I am much happier with it than I was the Esp. So much so that I have no desire whatsoever in any other machine at this point.

If you fly at a club, what is flown there? Have you done research on parts availability and cost? Have you checked the subforums here to gauge the amount of support and frequency of posts?

I know of several who have the new Pro and love it, and I know only one who has the compass, but he swears by it, and from all indications, it's a well designed and solid flying machine.

If, after doing your research, you are still on the fence, flip a coin. By all accounts, and from what I have seen and read here on HF, you can't go wrong wih either.
__________________
Nano CP X, mCP X BL, 130 X (Love the little ones)T-REX 500 Efl Pro DFC
Phoenix Sim, DX8, Gibson Les Paul, AMA #987871
"If a law is unjust, a man is not only right to disobey it, he is obligated to do so." Thomas Jefferson
Maypole is online now        Reply With Quote
Old 11-09-2012, 11:23 AM   #7
Shogun71
Registered Users
 
Posts: 3,658
 
My HF Map location
Join Date: May 2012
Location: Manitoba, Canada
Default

My atom 500 fell from approx 20 feet up. Lost power to a possibly bad esc bec.

Damage:
Main blades, links to blade grips, tail boom, canopy, front skid bracket, tail fin, one bearing in one of the blade grips.

Frame was completely intact, battery survived, main shaft and spindle perfectly fine.

Large crater in the ground, literally....

Approx $175 to repair, only due to the canopy, blades, and blade grip links being fairly expensive. Overall took a complete free fall quite well......
__________________
Rob
Team pilot Lynx Heli Innovations.
Warp 360, Atom 5.5, Trex 250 pro, Goblin 500, 570, 630, and 700 competition, Sk 540 and 720, YGE 18 LV to 160 HV.
Shogun71 is online now        Reply With Quote
Old 11-09-2012, 11:31 AM   #8
Jeff_Barrett
Registered Users
 
Posts: 12,178
 

Join Date: Aug 2010
Location: Manitoba, Canada
Default

Quote:
Originally Posted by Shogun71 View Post
Approx $175 to repair, only due to the canopy, blades, and blade grip links being fairly expensive. Overall took a complete free fall quite well......
I can vouch for this, I was present at the time! He now has the industries' first 'induction' canopy.



... and I cratered mine only a few weeks prior ... other than bruised ego, the parts count was fairly low considering the crash. Rob was present at said cratering. LOL!

The Atom 500 is an absolute tank compared to other models in its class.
__________________
Jeff Barrett
Team Synergy / Bavarian Demon / MKS Servo

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Jeff_Barrett is online now        Reply With Quote
Old 11-09-2012, 11:51 AM   #9
aja1216
Registered Users
 
Posts: 670
 

Join Date: May 2011
Location: Orlando, FL
Default Another vote for the Atom 500!!!

aja1216 is offline        Reply With Quote
Old 11-09-2012, 12:14 PM   #10
MpVpRb
Registered Users
 
Posts: 1,449
 

Join Date: Dec 2010
Location: Burbank, CA
Default

Quote:
Originally Posted by aja1216 View Post
Another vote for the Atom 500!
And another
__________________
Compass 7HV, Atom 500, Trex 450, all VBAR
Phoenix sim
MpVpRb is offline        Reply With Quote
Old 11-09-2012, 12:39 PM   #11
sansone
Registered Users
 
Posts: 2,685
 

Join Date: Jan 2010
Location: FL & NM
Default

Atom, for something different
__________________
Outrage Fusion 50 FBL / Futaba 8FG / Beastx / Scorpion HK4025
sansone is offline        Reply With Quote
Old 11-09-2012, 04:01 PM   #12
DrunkRabbit
Registered Users
 

Join Date: Jan 2008
Location: Chandler AZ
Default

I love my Atom.......

But I also loved my Trex 500.....






Get them both?
DrunkRabbit is offline        Reply With Quote
Old 11-09-2012, 04:12 PM   #13
lazor 22
Registered Users
 
Posts: 13,167
 
My HF Map location
Join Date: Apr 2010
Location: Central NC
Default

I crashed my 5.5 hard (wish I had it on video it was really cool looking) and damage was probably the lowest out of any heli I've ever crashed. Main blades, boom, skids, grip arm, grip screw. Canopy is almost untouched.


To the person that said they were looking at the atom, x5, or logo. You might be interested in the 5.5 stretch. Only really 2 downsides to it, you have to run the compass/rotortech 515 blades, or run 470's, because the grips width is to small for other blades and it uses mini servos instead of full sized. But the mini ones work ok and I'm only running 510's. I think the JR's or MKS do fine.
__________________
Lincoln
Team Compass
6HVu, N5c; 8FG
lazor 22 is offline        Reply With Quote
Old 11-09-2012, 06:53 PM   #14
cyclo
Registered Users
 
Posts: 2,867
Thread Starter Thread Starter
 

Join Date: Jul 2012
Location: Toronto, Canada
Default

Thanks to all who replied. I haven't made the decision yet as in my opinion both helis are excellent for my needs. The T-Rex has parts availability and nice looks going for it while the Atom appears to have simplicity and toughness going for it. I also like it's subdued style and the belt driven tail. Performance wise they probably are very similar as they weight almost the same based on the published specs.

I might actually get one first and then the other later... I think they will both be excellent additions to my growing stable of helis.
__________________
2 x Compass 7HVU Scorpion HK-4525-520, YGE 160HV, MKS HBL950/980, AR7200BX
Compass Atom 5.5 YGE 90HV, MKS 9660A+/BLS980, AR7200BX
Compass Atom 500 Castle ICE75, Savox 1250MG/1290MG, AR7200BX
Gaui X3 Scorpion HK-2520-1580, HW50A V3, KST 215/515, AR7200BX
Hoverthings FLIP-FPV
cyclo is online now        Reply With Quote
Old 11-12-2012, 03:09 AM   #15
gothicbunny
 
My HF Map location
Join Date: Mar 2010
Location: Winnipeg, MB
Default

I was present at both Rob's and Jeff's crashes, but didn't actually see them. With my Trex next to their Atoms, there is no doubt which is beefier.

My advice is to consider where you do most of your shopping. If you have to start ordering online at somewhere special that you don't already order from on a regular basis, you may also want to take into account shipping costs.

For me, I fly with a Compass dealer so there are no shipping costs. The only reason I fly the Trex is because I already had it and is the oldest ship in my fleet. When it finally has an incident worthy of retiring it, I already know which way I'm going.
gothicbunny is offline        Reply With Quote
Old 11-12-2012, 03:17 AM   #16
andione1983
Registered Users
 
Posts: 707
 

Join Date: Nov 2011
Location: Melbourne
Default

Quote:
Originally Posted by wocka_wocka View Post
I have a Compass Atom, FBL w/beastx & Futaba, and have had a Trex 500 FB (TT tail). No comparison. Atom: beefy, built like a tank. I had no real issues with the way the Trex flew, but it was just flimsy in comparison.

I've crashed my Trex 450 into a wall and replaced main blades and flybar.

I dropped the Trex 500 onto the floor in the most minor way you can imagine, eeerrrmm, main blades, flybar, popped all three cyclic servos and bent the boom...

And another thing, I don't like the Trex gyros. The 450 has a CSM smart lock and its lovely to fly. The 500 had a 780 gyro that I never really got set up properly.

Don't get me wrong, I'm not anti-Trex at all. I have a Beam 450 and an old Trex 450 and while the Beam is much better mechanical quality I enjoy flying the Trex far more.

Go for the Compass Atom and see what you think.
the new 500EFL... amazing machine... so fast sharp, nimble and belts along... my favourite heli to fly at present.. but then again i have never flown a compass 500
__________________
Align 700DFC, Logo 600SX,Goblin 500,Trex 500DFC, Gaui X3 Flying MODE1 with Spektrum DX7S, VBAR,FUBAR,SK540
andione1983 is offline        Reply With Quote
Old 11-12-2012, 08:14 AM   #17
cyclo
Registered Users
 
Posts: 2,867
Thread Starter Thread Starter
 

Join Date: Jul 2012
Location: Toronto, Canada
Default

I decided to go with the Atom 500 for now although I might yet get the T-Rex 500 sometime in the future.

500 sized helis will probably be as big as I will go. I prefer to ride my bicycle to the nearby park carrying the helis with me. With the 500, I might need to get a bike trailer as the Atom 500 inside a case might be too big to sling at my back.
__________________
2 x Compass 7HVU Scorpion HK-4525-520, YGE 160HV, MKS HBL950/980, AR7200BX
Compass Atom 5.5 YGE 90HV, MKS 9660A+/BLS980, AR7200BX
Compass Atom 500 Castle ICE75, Savox 1250MG/1290MG, AR7200BX
Gaui X3 Scorpion HK-2520-1580, HW50A V3, KST 215/515, AR7200BX
Hoverthings FLIP-FPV
cyclo is online now        Reply With Quote
Old 11-12-2012, 08:29 AM   #18
ARM_Coder
Registered Users
 
Posts: 1,345
 

Join Date: Jan 2011
Location: S„o Paulo, Brazil
Default

As other said, the Compass is built like a tank, is very lightweight and very easy to wrench. I have the Atom 500 with the 5.5 stretch and an old Trex 500E converted to FBL. Now my 500E is collecting dust most of the time.

I can't say a word about the Trex 500 Pro, tough.

Cheers!
__________________
All Flash sectors accounted for. FSMC is ready.

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Compass 7HV / Atom 6HVU / Atom 5.5 / Warp 360 / DX8
ARM_Coder is online now        Reply With Quote
Old 11-12-2012, 08:57 AM   #19
Anthony440
Registered Users
 
Posts: 1,545
 
My HF Map location
Join Date: Jul 2009
Location: Colorado
Default

I have an atom 500 and a trex 500 ESP. My vote goes to the atom... Flies amazing and is a very under rated Heli for how great it is!
Anthony440 is online now        Reply With Quote
Old 11-12-2012, 09:09 AM   #20
esmoglo
Registered Users
 
Posts: 2,796
 

Join Date: Jan 2008
Location: South Florida USA
Default

One thing I have noticed with the Align DFC heads is they cause allot more damage in a crash VS any Compass heli. With the solid CNC (arm that go from the grip to the swash) once they come loose they will hit the CNC auto rotation bracket bend it then bend the grip arm destroying it, then damage the grip were the arm bolts in to the grip. I have seen this time and time again with all the DFC heads itís allot of unnecessary damage.

With the Compass at best you will break the derlin rods but thatís it. Also agree that with the Compass it will survive any type crash allot better then the T-500 will. So the Compass getís my vote itís a better 500 size heli option.
__________________
Angelo
esmoglo is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk


Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com